Most Mexican states do not have an official flag. For these states, a de facto flag is used for civil and state purposes. State flags of Mexico have a 4:7 ratio and typically consist of a white background charged with the state's coat of arms.^[1]

At least nine states have official flags: Baja California Sur, Chihuahua, Durango, Guanajuato, Guerrero, Jalisco, Querétaro, Quintana Roo, Tlaxcala and Yucatán. Except for Jalisco, Tlaxcala and Yucatán, each official flag is simply a white background charged with the state's coat of arms. Coahuila, Colima, Oaxaca, Tabasco and Tamaulipas adopted its coat of arms into a flag.

Two states have provisions in their constitutions explicitly declaring that there shall be no official state flag. These states are Baja California^[2] and Campeche.^[3]

De jure flags

• 
  Baja California Sur
  (adopted December 31, 2017)^[4]
• 
  Durango
  (adopted March 9, 2014)^[5]
• 
  Guanajuato
  (adopted December 20, 2023)^[6]
• 
  Guerrero
  (adopted October 25, 2019)^[7]
• 
  Jalisco
  (adopted February 22, 2007)^[8]
• 
  Querétaro
  (adopted September 22, 2015)^[9]
• 
  Quintana Roo
  (adopted January 1, 2016)^[10]
• 
  Tlaxcala
  (adopted October 30, 2011)^[11]
• 
  Yucatán
  (adopted September 13, 2023)^[12]

De jure coat of arms in a flag

• 
  Coahuila
  (adopted December 27, 2013)^[13][14]
• 
  Colima
  (adopted February 24, 2018)^[15]
• 
  Oaxaca
  (adopted March 12, 2020)^[16]
• 
  Tabasco
  (adopted February 19, 2020)^[17]
• 
  Tamaulipas
  (adopted December 15, 2011)^[18]

De facto flags

• 
  Aguascalientes^[19]
• 
  Baja California^[20]
• 
  Campeche^[21]
• 
  Chiapas^[22]
• 
  Hidalgo^[23]
• 
  Mexico^[24]
• 
  Mexico City
• 
  Michoacán de Ocampo^[25]
• 
  Morelos^[26]
• 
  Nayarit
• 
  Nuevo León^[27]
• 
  San Luis Potosi
• 
  Puebla
• 
  Sinaloa
• 
  Sonora
• 
  Veracruz de Ignacio de la Llave^[28]
• 
  Zacatecas

De facto flags with special designs

• 
  The zapatista flag for an independent Chiapas, this flag is wildly controversial because of the Chiapas conflict.
• 
  Unofficial Flag of Chihuahua, a civil flag used by students and people in Chihuahua City, it's created by Daniel Martínez Miranda in 2009.^[29]
• 
  A black and white variant of the Mexico City flag, with other variants existing. It is used more often than the standard color Mexico City coat of arms on a white field.
• 
  Flag of Coahuila y Tejas since 1836, is proposed by governor of Coahuila, Manolo Jiménez as the stateflag of Coahuila.^[30][31]
• 
  A variant flag of Colima with 13 stars and big red star on yellow-white bars, it's an unofficial civil flag .^[32]
• 
  Unofficial Flag of Nuevo León, a civil flag used by students in Monterrey, it's a variant from the Republic of the Rio Grande.^[33][34]
• 
  Veracruz de Ignacio de la Llave, it is just like the standard coat of arms in a white field flag, but with green and red corners, this is the official flag of the state's government, but an unofficial flag of the state itself.^[35]

Historical

• 
  Nueva Galicia (1531)
• 
  Coahuila y Tejas (1836)^[36]
• 
  Soconusco (1843)
• 
  Republic of the Rio Grande (1840)
• 
  Republic of Yucatán (1841–1848)^[37]
• 
  Republic of Baja California (1853)
• 
  Republic of Sonora (1853–1854)
• 
  Republic of Sonora (1852/1854)
• 
  Yucatán (unofficially until 1989),^[38] used today as the unofficial flag of Mérida
• 
  Jalisco (1972, unofficially from 1973–1998)
• 
  Jalisco (unofficially from 1998–2008)^[39]
• 
  Tlaxcala (unofficially from 1998–2016)^[40]
• 
  Jalisco (unofficially from 2008–2011)^[41]
• 
  Jalisco (2011–2013)^[42]
• 
  Quintana Roo (2013–2016)^[43]
• 
  Yucatán (unofficially from 1989-2023)
• 
  Guanajuato (unofficially unitl 2023)

Gallery

De jure

• 
  Flag of Guanajuato
• 
  Flag of Jalisco
• 
  Flag of Oaxaca
• 
  Flag of Quintana Roo
• 
  Flag of Tlaxcala
• 
  Flag of Yucatán.

De facto

• 
  Proposed flag for Nuevo León
  (limited in use)
• 
  Government flag of Veracruz